diffConfig always returns true if modeBarButtons (array of array) is populated

diffConfig function has bug where it always returns true if modeBarButtons (array of array) is populated. This results in unnecessary re-rendering. The function should check if the array member is array inside a for loop, It should be -

/*

• simple diff for config - for now, just treat all changes as equivalent
  */
  function diffConfig(oldConfig, newConfig) {
  var key;

  for(key in oldConfig) {
  if(key.charAt(0) === '_') continue;
  var oldVal = oldConfig[key];
  var newVal = newConfig[key];
  if(oldVal !== newVal) {
  if(Lib.isPlainObject(oldVal) && Lib.isPlainObject(newVal)) {
  if(diffConfig(oldVal, newVal)) {
  return true;
  }
  } else if(Array.isArray(oldVal) && Array.isArray(newVal)) {
  if(oldVal.length !== newVal.length) {
  return true;
  }

           for(var i = 0; i < oldVal.length; i++) {
               if(oldVal[i] !== newVal[i]) {
   				**if(Array.isArray(oldVal[i]) && Array.isArray(newVal[i])){
   					if(diffConfig(oldVal[i], newVal[i])) {
   						return true;
   					}
   				}							
                   else** if(Lib.isPlainObject(oldVal[i]) && Lib.isPlainObject(newVal[i])) {
                       if(diffConfig(oldVal[i], newVal[i])) {
                           return true;
                       }
                   } else {
                       return true;
                   }
               }
           }
       } else {
           return true;
       }
   }
  

  }
  }

e.g Config object used -

const plotlyConfig: Partial = {
responsive: true,
displaylogo: false,
displayModeBar: true,
doubleClick: false,
showTips: false,
scrollZoom: false,
modeBarButtons: [
[
'select2d',
'lasso2d',
'zoom2d',
'pan2d',
'resetScale2d',
],
],
locale: language,
locales: locales
}

Individua la funzione diffConfig e usa l'esempio plotlyConfig con array modeBarButtons annidati come caso di riproduzione. Confronta array annidati equivalenti e verifica che le configurazioni invariate non vengano segnalate come diverse, evitando il re-rendering non necessario; l'issue non indica alcun file o test.